I trained to absolutely failure like someone has a gun to my head for years as a natural and ended of with major injuries
As stated earlier it can't be done years round, and now I'm older I find it's best done on a cycle and on the heavier side of a cycle where recovery is enhanced
Still good to back off if a sign of an injury is warning you like elbows hurt on that sixth rep suprine triceps extensions but you have it in your head your going ten lbs heavier no matter what, that's ignorant and will injure you, which will require more time to heal, and not worth it, obviously
It's best to do this no more than six weeks max when doing every resistance training day like this